Objavljen
Applicable to test pieces cut from products of cellular materials. Useful for two purposes: a) studying the structure of cellular products in connection with their physical properties and their method of manufacture and b) ensuring product quality (quality assurance). Describes principle, apparatus, test piece and conditions, procedure and calculation and expression of the results. Three figures deliver the details for testing.
OBJAVLJEN
ISO 4638:1984
90.92
Odluka o izmeni ili reviziji standarda
23. 12. 2025.
PROJEKAT
ISO/DIS 4638
Fleksibilni polimerni materijali sa ćelijama- Određivanje propustljivosti struje vazduha
60.60 Standard objavljen